Welcome back ladies and gentlemen of the internet. There are certain things that should come concomitantly with relationships. Trust and honesty are two crucial requirements for any healthy relationship, and without these foundations, a relationship is doomed to be in insecurity purgatory. Cheating, lying, and any other form of betrayal is likely to make someone walk away the instant they smell it. It begs the question, why do people keep doing it? Fear, doubt, and insecurity are a few reasons, but at the end of the day, the truth will manifest itself in one way or another.
This brings us to the Reddit thread. In this story, the original poster (OP) is a man who's been lied to. He knew that a friend of his girlfriend's is a guy who met her on a dating app, but she swore to him nothing happened other than one date. Fast forward, and his worst fears are brought to his attention at a dinner party in front of a bunch of people. His girlfriend actually had corporeal relations with the guy. After they leave the dinner he gets her confession, leaving him conflicted about their relationship.